CRITICAL CURRENT PROPERTIES UNDER HIGH MAGNETIC-FIELDS UP TO 30-T FOR Y-BA-CU-O FILMS BY MOCVD

被引：8

作者：

MATSUNO, S ^{[1
]}

UCHIKAWA, F ^{[1
]}

YOSHIZAKI, K ^{[1
]}

KOBAYASHI, N ^{[1
]}

WATANABE, K ^{[1
]}

MUTO, Y ^{[1
]}

TANAKA, M ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133447

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Y-Ba-Cu-O superconducting film prepared by MOCVD was shown to have excellent critical current density of 2.7x10(6) A/cm2 at 77 K, O T and 2.5x10(4) A/cm2 at 77 K, 30 T respectively. The upper critical field, Bc2 for the film was estimated to be 59 T at 77 K. The activation energy, Uo (B) of 1.98 eV at 21 T was shown by electrical resistance measurement under magnetic fields. Cu composition of the film was approximately 75 % over from the stoichiometry of YBa2Cu3O7-x system. The film had numerous CuO particles by SEM and EPMA observation.

引用

页码：1398 / 1401

页数：4

共 6 条

[1] RESISTIVE TRANSITION IN YBA2CU3OZ AND BI2(SR,CA)3CU2OZ CVD FILMS UNDER HIGH MAGNETIC-FIELD [J].